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Finding the Fourth Proportional to 488,347.80, 732,631.05 and 188,801.70

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Solution

The fourth proportional to 488,347.80, 732,631.05 and 188,801.70 is: 283,244.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,347.80 : 732,631.05 = 188,801.70 : x
  2. Step 2: Convert to fraction form
    488,347.80/732,631.05 = 188,801.70/x
  3. Step 3: Cross multiply
    488,347.80x = 732,631.05 × 188,801.70
  4. Step 4: Simplify right side
    488,347.80x = 138,321,987,712.79
  5. Step 5: Solve for x
    x = 138,321,987,712.79/488,347.80
  6. Step 6: Final answer
    x = 283,244.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.